This report describes the typical weather at the Memphis International Airport (Memphis, Tennessee, United States) weather station over the course of an average May 24. It is based on the historical records from 1974 to 2012. Earlier records are either unavailable or unreliable.
Memphis, Tennessee has a warm humid temperate climate with hot summers and no dry season. The area within 25 mi of this station is covered by forests (37%), croplands (34%), grasslands (16%), built-up areas (8%), and lakes and rivers (4%).
The temperature typically varies from 66°F to 82°F and is rarely below 58°F or above 89°F.
The coolest hours of the day are from 2am to 8am with the coldest at 6am, at which time the temperature is below 71°F three days out of four.
The warmest hours of the day are from noon to 7pm with the hottest at 4pm, at which time the temperature is above 77°F three days out of four.
The day has gained half its heat by 10am and lost it again by 10pm.
On May 24 the Sun rises at 5:50am and sets at 8:04pm.
Solar noon is at 12:56pm.
For reference, on the longest day of the year the Sun rises at 5:45am and sets at 8:17pm, while on the shortest day of the year it rises at 7:04am and sets at 4:52pm.
Astronomical twilight begins and ends 102 minutes before sunrise and after sunset at 4:08am and 9:46pm, respectively.
Nautical twilight begins and ends 63 minutes before sunrise and after sunset at 4:46am and 9:07pm, respectively.
Civil twilight begins and ends 29 minutes before sunrise and after sunset at 5:21am and 8:32pm, respectively.
Solar twilight begins and ends 36 minutes after sunrise and before sunset at 6:26am and 7:27pm, respectively.
The median cloud cover ranges from 49% (partly cloudy) to 74% (partly cloudy).
At 1am, the clearest time of the day, the sky is clear, mostly clear, or partly cloudy 60% of the time, and overcast or mostly cloudy 40% of the time.
At noon, the cloudiest time of the day, the sky is overcast, mostly cloudy, or partly cloudy 74% of the time, and clear or mostly clear 26% of the time.
The sky is typically clearing in earnest by 9pm.
The clouds have typically started forming in earnest by 6am.
There is a 40% chance that precipitation will be observed at some point during the day.
The average measured liquid-equivalent quantity of precipitation is 0.132". Among only those days for which there is at least some measured precipitation, the average is 0.440" and the total rarely exceeds 1.125".
When precipitation does occur it is most often in the form of thunderstorms (59% of days with precipitation have at worst thunderstorms), slight rain (25%), and moderate rain (11%).
Precipitation is most likely around 6pm and least likely around 11am.
Either snow is exceptionally unlikely to fall at this location on May 24 or this station does not reliably report precipitation types.
The relative humidity typically ranges from 53% (mildly humid) to 80% (humid), rarely dropping below 34% (comfortable), or exceeding 94% (very humid).
The air is driest at 4pm, at which time the relative humidity is less than 63% (mildly humid) three days out of four; it is most humid at 5am, exceeding 73% (humid) three days out of four.
The dew point ranges from 61°F to 62°F with an average of 61°F.
For reference, comfortable indoor conditions should have a relative humidity between 30% and 50% with a dew point of less than 65°F.
Sustained wind speeds typically vary from 6 mph to 11 mph (light breeze to gentle breeze) over the course of the day.
The peak sustained wind speed typically occurs around 4pm and is rarely outside the range 6 mph to 16 mph (light breeze to moderate breeze).
The wind is most calm around 6am, rarely exceeding 10 mph (gentle breeze).
The wind is most often out of the south (27% of the time), south west (14% of the time), south east (12% of the time), and east (10% of the time). The wind is least often out of the north west (5% of the time).